The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2010
Filed:
Oct. 19, 2007
Akihiro Matsuda, Ichihara, JP;
Nobuo Murase, Ichihara, JP;
Satoshi Ikeda, Ichihara, JP;
Masahiro Enna, Ichihara, JP;
Junichi Mohri, Chiba, JP;
Akihiro Matsuda, Ichihara, JP;
Nobuo Murase, Ichihara, JP;
Satoshi Ikeda, Ichihara, JP;
Masahiro Enna, Ichihara, JP;
Junichi Mohri, Chiba, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Abstract
A copolymer containing a constituent unit derived from ethylene and a constituent unit derived from an α-olefin having 3 to 20 carbon atoms and satisfying the following requirements (1) to (5): (1) the copolymer has a melting point (Tm) of −20° C. to 100° C.; (2) the melting point (Tm) and the density D (g/cm) satisfy the following expression Tm≧1073×D−893 (1); (3) the copolymer has a molecular weight distribution (Mw/Mn) measured by GPC of 1.6 to 5.0; (4) the copolymer has a half-width (ΔThalf) of a melting peak measured by DSC of 90° C. or less; and (5) the half-width (ΔThalf) and the melting point (Tm) satisfy the relationship shown by the following expressionΔThalf≦−0.71×Tm+101.4  (2).